Accurately convert
Bengali CAF files to text
Sonix automatically transcribes your Bengali CAF files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your Bengali CAF files are long gone. Bengali speech to text: Sonix has been independently reviewed the most accurate Bengali automated transcription, translation, and subtitling platform.
Free to start — no credit card required.
Thousands of Sonix customers convert their Bengali CAF files to text











Use Sonix to quickly convert
Bengali CAF files to text
- 1Log into your Sonix account~30 sec
If you don't have one, you can sign up for Sonix's free account — Your free trial includes 30 minutes of transcription and translation.
- 2Upload your Bengali CAF file~1 min
Click “Upload” and locate the Bengali CAF file on your computer.
- 3Choose language: Bengali~10 sec
Select Bengali as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your CAF file~5 min
Sonix transcribes your Bengali CAF file and converts it to Bengali text.
- 5Polish your Bengali transcript~2 min
Edit your Bengali transcript directly in the browser to correct any misheard words.
- 6Export Bengali text~10 sec
Export the Bengali text to MS Word, PDF, subtitles, or plain text.
Understanding Bengali CAF files
Standard Bengali comes in two closely related national varieties: the Dhaka-influenced standard used in Bangladesh and the Kolkata-based standard used in West Bengal, India, which differ in pronunciation and some vocabulary. Regional varieties such as Sylheti and Chittagonian diverge so strongly that many linguists classify them as separate languages, so they behave differently from standard Bengali in speech recognition.
CAF technical specifications
- Codec
- Various (Linear PCM, Apple Lossless, AAC, IMA4, others)
- Container
- Core Audio Format (Apple container)
- Typical bitrate
- Varies by codec; ~1,411 kbps for 16-bit/44.1 kHz stereo PCM, lower with AAC or Apple Lossless
- Sample rate
- Arbitrary; 44.1–192 kHz common in professional use
- Compression
- Container (varies)
Bengali at a glance
- Speakers
- ~270 million speakers worldwide
- Writing system
- Bengali (Bangla) script, an abugida written left to right
- Say hello
- হ্যালো
Frequently asked questions
How to improve the accuracy of your Bengali transcripts?
Start by improving the quality of the Bengali CAF file that you upload to Sonix. Please use high quality recording equipment, recording in a quiet environment, and ensure that your speakers are speaking clearly to ensure that your transcript is as accurate as possible.
Any advice for the Bengali CAF file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Bengali CAF file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from CAF, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Bengali with Sonix:
Why won't my CAF file play on Windows?
CAF is an Apple container that most Windows applications do not support natively. You can open it with a third-party player such as VLC, or convert it to WAV or MP3 for broader compatibility.
How large can a CAF file be?
CAF uses 64-bit file offsets, so there is no practical size limit and recordings can run for many hours. This is the main advantage over WAV and AIFF, which are capped at 4 GB.
Can Sonix transcribe both Bangladeshi and Indian Bengali?
Yes. Sonix's Bengali model handles standard Bengali as spoken in both Bangladesh and West Bengal, India; you upload your audio or video, select Bengali, and then review and edit the transcript in the browser.
Does Sonix output Bengali transcripts in the Bengali script?
Yes. Transcripts are produced in the native Bengali (Bangla) script, and you can edit them in the online editor and export to formats such as DOCX, PDF, SRT, and VTT.
Can Sonix transcribe Sylheti or Chittagonian recordings?
Sonix's Bengali model is trained on standard Bengali, and Sylheti and Chittagonian diverge enough that they are often considered separate languages. Recordings in those varieties may need more manual correction in the editor.
Trusted by professionals worldwide
The UI experience is fantastic! It's quick and easy to understand. Plus it's web based so I can switch between my desktop and laptop easily.
I'd give Sonix a 10 mainly due to the accuracy.
More ways to convert & transcribe
Jump straight to a related format, language, or tool — every link below is a real page.